Spirometry is one of the functional tests most used in respiratory medicine to assess lung function in health and disease *** success is grounded on solid principles of lung mechanics that state that maximal flow on e...
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Spirometry is one of the functional tests most used in respiratory medicine to assess lung function in health and disease *** success is grounded on solid principles of lung mechanics that state that maximal flow on expiration is limited by the physical properties of airways and lung *** contrast,on inspiration,flow depends on the force generated by the inspiratory *** expiratory forced flow and volumes usually reflect a deviation from health *** due to a complex interplay of different obstructive and restrictive lung diseases within the multiple structural dimensions of the respiratory system,flows and volumes do not always perfectly reflect the impact of the disease on lung *** present review is intended to shed light on a series of artefacts and biological phenomena that may confound the clinical interpretation of the main spirometric *** them is thoracic gas compression volume,the volume and time history of the inspiratory manoeuvre that precedes the forced expiration,the effects of heterogeneous distribution of the disease across the respiratory system,and the changes in lung elastic recoil.
Colonoscopy represents the most widespread and effective tool for the prevention and treatment of early stage preneoplastic and neoplastic lesions in the panorama of cancer *** the world there are different approaches...
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Colonoscopy represents the most widespread and effective tool for the prevention and treatment of early stage preneoplastic and neoplastic lesions in the panorama of cancer *** the world there are different approaches to the topic of colorectal cancer prevention and screening:different starting ages(45-50 years);different initial screening tools such as fecal occult blood with immunohistochemical or immune-enzymatic tests;recto-sigmoidoscopy;and *** key aspects of this scenario are composed of a proper bowel preparation that ensures a valid diagnostic examination,experienced endoscopist in detection of preneoplastic and early neoplastic lesions and open-minded to upcoming artificial intelligence-aided examination,knowledge in the field of resection of these lesions(from cold-snaring,through endoscopic mucosal resection and endoscopic submucosal dissection,up to advanced tools),and management of complications.
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